<template>
  <div>
    <el-row >
      <el-col :offset="2" :span="8">
        <el-input :id="suggestId" v-model="address_detail" :clearable='clearable' placeholder="请输入店铺地址,获取店铺坐标" >
        </el-input>
      </el-col>
      <el-col :span="2">
        <el-button id="position" @click="search" type="primary">定位</el-button>
      </el-col>
      <el-col :span="12" >
        <el-tag type="success" v-clipboard:copy="userlocation.lng" v-clipboard:success="onCopy" v-clipboard:error="onError" >经度 {{userlocation.lng}}</el-tag>
        <el-tag type="success" v-clipboard:copy="userlocation.lat" v-clipboard:success="onCopy" v-clipboard:error="onError">纬度 {{userlocation.lat}}</el-tag>
        <el-tag type="success" ><<<<点击按钮复制经纬度信息</el-tag>
      </el-col>
    </el-row>
    <el-row>
      <el-col :offset="2" :span="18">
        <div id="map_canvas" class="allmap"></div>
      </el-col>
    </el-row>
  </div>
</template>
<script>
  export default {
    name : "searchmap",
    data() {
      return {
        address_detail: "", //详细地址
        userlocation: { lng: "", lat: "" },
        clearable: true,
        suggestId: "suggestId",
        map : {},
        mk: {}
      };
    },
    created () {

    },
    methods: {
      drawMap() {
        this.map = new BMap.Map("map_canvas");        // 创建地图实例
        this.map.addControl(new BMap.NavigationControl());      // 启用放大缩小 尺
        this.map.enableScrollWheelZoom();
        this.getlocation();//获取当前坐标, 测试时获取定位不准。

        var point = new BMap.Point(this.userlocation.lng, this.userlocation.lat); // 创建点坐标
        this.map.centerAndZoom(point, 13);         // 初始化地图，设置中心点坐标和地图级别
        var marker = new BMap.Marker(point);    // 创建标注
        this.map.addOverlay(marker);           // 将标注添加到地图中

        var ac = new BMap.Autocomplete({
          //建立一个自动完成的对象
          input: "suggestId",
          location: this.map
        });
        var myValue;
        ac.addEventListener("onconfirm", (e)=> {
          //鼠标点击下拉列表后的事件
          var _value = e.item.value;
          myValue =_value.province +_value.city +_value.district +_value.street +_value.business;
          this.address_detail = myValue;
          this.setPlace();
        });
      },
      getMarker (point) {
        this.mk = new BMap.Marker(point);
        this.mk.addEventListener("dragend", this.showInfo);
        this.mk.enableDragging();  //可拖拽
        this.getAddress(point);
        this.map.addOverlay(this.mk);//把点添加到地图上
        this.map.panTo(point);
      },
      getlocation () {
        //获取当前位置
        var geolocation = new BMap.Geolocation();
        geolocation.getCurrentPosition((r) =>{
          if(geolocation.getStatus() == BMAP_STATUS_SUCCESS){
            this.getMarker(r.point);
            this.userlocation = r.point;
          }else {
            alert('failed'+this.getStatus());
          }
        });
      },
      //绑定Marker的拖拽事件
      showInfo(e){
        var gc = new BMap.Geocoder();
        gc.getLocation(e.point, (rs)=>{
          var addComp = rs.addressComponents;
          var address = addComp.province + addComp.city + addComp.district + addComp.street + addComp.streetNumber;//获取地址

          //画图 ---》显示地址信息
          var label = new BMap.Label(address,{offset:new BMap.Size(20,-10)});
          this.map.removeOverlay(this.mk.getLabel());//删除之前的label

          this.mk.setLabel(label);
          this.address_detail = address;
          this.userlocation = e.point;

        });
      },
      //获取地址信息，设置地址label
      getAddress(point){
        var gc = new BMap.Geocoder();

        gc.getLocation(point, (rs)=>{
          var addComp = rs.addressComponents;
          var address = addComp.province + addComp.city + addComp.district + addComp.street + addComp.streetNumber;//获取地址

          //画图 ---》显示地址信息
          var label = new BMap.Label(address,{offset:new BMap.Size(20,-10)});
          this.map.removeOverlay(this.mk.getLabel());//删除之前的label
          this.address_detail = address;
          this.mk.setLabel(label);

        });

      },
      setPlace() {
        this.map.clearOverlays(); //清除地图上所有覆盖物
        var th = this
        function myFun() {
          th.userlocation = local.getResults().getPoi(0).point; //获取第一个智能搜索的结果
          th.map.centerAndZoom(th.userlocation, 18);
          th.getMarker(th.userlocation);
        }

        var local = new BMap.LocalSearch(this.map, {
          onSearchComplete: myFun //智能搜索
        });
        local.search(this.address_detail);
      },
      search () {
        var localSearch = new BMap.LocalSearch(this.map);
        localSearch.enableAutoViewport(); //允许自动调节窗体大小
        this.searchByInputName(localSearch);
      },
      searchByInputName(localSearch) {
        this.map.clearOverlays(); //清空原来的标注
        var th = this;
        var keyword = this.address_detail;
        localSearch.setSearchCompleteCallback(function(searchResult) {
          var poi = searchResult.getPoi(0);
          th.userlocation = poi.point;
          th.map.centerAndZoom(poi.point, 13);
          th.getMarker(th.userlocation);
        });
        localSearch.search(keyword);
      },
      onCopy () {
        this.$message('内容已复制到剪贴板!');
      },
      onError () {
        this.$message('内容复制失败,请重试!');

      }

    },
    mounted() {
      this.$nextTick(function() {
        this.drawMap();
      });

    }
  };
</script>
<style scoped>
  .allmap {
    width: 100%;
    height: 1000px;
    font-family: "微软雅黑";
    border: 1px solid green;
  }
  .el-tag {
    cursor: pointer;
  }
</style>
